Using a Razberry as Secondary controller

I’ve just setup a Razberry controller with a Fibaro FGS221 switch, and eventually, after much messing around I managed to include the Fibaro switch into the Razberry network, and even managed to control the lights and get status using JSON. However, I decided to get a VeraLite as well. My hope is that I can use the VeraLite as the primary controller and use the Razberry as a Secondary controller in an outbuilding, some way from the house.

I believe from earlier posts this may be possible. If so, has anyone managed it? Any instructions would be gratefully received.

Thanks.